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ActionController::Benchmarking::ClassMethods

Public Instance Methods

benchmark(title, log_level = Logger::DEBUG, use_silence = true) click to toggle source

Log and benchmark the workings of a single block and silence whatever logging that may have happened inside it (unless use_silence is set to false).

The benchmark is only recorded if the current level of the logger matches the log_level, which makes it easy to include benchmarking statements in production software that will remain inexpensive because the benchmark will only be conducted if the log level is low enough.

# File lib/action_controller/benchmarking.rb, line 23
def benchmark(title, log_level = Logger::DEBUG, use_silence = true)
  if logger && logger.level == log_level
    result = nil
    ms = Benchmark.ms { result = use_silence ? silence { yield } : yield }
    logger.add(log_level, "#{title} (#{('%.1f' % ms)}ms)")
    result
  else
    yield
  end
end
silence() click to toggle source

Silences the logger for the duration of the block.

# File lib/action_controller/benchmarking.rb, line 35
def silence
  old_logger_level, logger.level = logger.level, Logger::ERROR if logger
  yield
ensure
  logger.level = old_logger_level if logger
end

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